HYDROQUINONE USP, 4% SKIN BLEACHING CREAM is indicated for the gradual bleaching of hyperpigmented skin conditions such as chloasma, melasma, freckles, senile lentigines, and other unwanted areas of melanin hyperpigmentation.

Contains sodium metabisulfite, a sulfite that may cause allergic-type reactions including anaphylactic symptoms and life-threatening or less severe asthmatic episodes in certain susceptible people.

The overall prevalence of sulfite sensitivity in the general population is unknown and probably low.

Sulfite sensitivity is seen more frequently in asthmatic than in non-asthmatic people.

Since this product contains no sunscreen, an effective broad spectrum sun blocking agent should be used and unnecessary solar exposure avoided, or protective clothing should be worn to cover bleached skin in order to prevent repigmentation from occurring.

Hydroquinone may produce exogenous ochronosis, a gradual blue-black darkening of the skin.

If this condition occurs, discontinue treatment and consult your physician.

The majority of patients developing this condition are Black, but it may also occur in Caucasians and Hispanics.

The following adverse reactions have been reported: dryness and fissuring of paranasal and infraorbital areas, erythema, and stinging.

Occasional hypersensitivity (localized contact dermatitis) may develop.

If this occurs, the medication should be discontinued and the physician notified immediately.